unit-test.py: Remove objmgr workaround

As was done in build-unit-test-docker.sh, this commit removes
a phosphor-objmgr workaround that was needed due to a systemd
dependency that doesn't exist anymore.

Tested: Ran run-unit-test-docker.sh.

Change-Id: Ica85023330a4e102f0ecc7e8b7b1c8bb411fb1e8
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
diff --git a/scripts/unit-test.py b/scripts/unit-test.py
index e946b83..a92689e 100755
--- a/scripts/unit-test.py
+++ b/scripts/unit-test.py
@@ -683,7 +683,6 @@
 if __name__ == '__main__':
     # CONFIGURE_FLAGS = [GIT REPO]:[CONFIGURE FLAGS]
     CONFIGURE_FLAGS = {
-        'phosphor-objmgr': ['--enable-unpatched-systemd'],
         'sdbusplus': ['--enable-transaction'],
         'phosphor-logging':
         ['--enable-metadata-processing',